v20.11 release

* New math routines
  * Scalar erff and erf using fma.

Author: nsz-arm

README

@@ -9,7 +9,7 @@ contributor-agreement.pdf. This is needed so upstreaming code
 to projects that require copyright assignment is possible.
 
 Regular quarterly releases are tagged as vYY.MM, the latest
-release is v20.08.
+release is v20.11.
 
 Source code layout: